Experimental and numerical investigation on thermo-mechanical behavior of fuel rod under simulated LOCA conditions

Ashwini Kumar Yadav,Chang Hwan Shin,Sung Uk Lee,Hyo Chan Kim

Nuclear Engineering and Design（2018）

引用 12|浏览5

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摘要

•A burst criterion for the Zircaloy-4 clad tube at low heating rates (2–8 K/s) developed using fuel simulator.•Cladding temperature, fill pressure and radial deformation were recorded for code validation.•A code was developed using finite difference method and plastic/creep equations.•The predictions by CREEP model were better due to gradual rise in hoop stress until burst.

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关键词

Clad tube ballooning,Loss of coolant accidents,Nuclear fuel,Azimuthal temperature difference

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